content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2013, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
   * Other names may be trademarks of their respective owners.]
   *
   * -------------------
   * G2TextMeasurer.java
   * -------------------
   * (C) Copyright 2004-2013, by Object Refinery Limited and Contributors.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * $Id: G2TextMeasurer.java,v 1.4 2005/10/18 13:17:16 mungady Exp $
   *
   * Changes
   * -------
   * 07-Jan-2004 : Version 1 (DG);
   *
   */
  
  package org.jfree.chart.text;
  
  import java.awt.FontMetrics;
  import java.awt.Graphics2D;
  import java.awt.geom.Rectangle2D;
  
  /**
   * A {@link TextMeasurer} based on a {@link Graphics2D}.
   */
  public class G2TextMeasurer implements TextMeasurer {
  
      /** The graphics device. */
      private Graphics2D g2;
  
      /**
       * Creates a new text measurer.
       *
       * @param g2  the graphics device.
       */
      public G2TextMeasurer(Graphics2D g2) {
          this.g2 = g2;
      }
  
      /**
       * Returns the string width.
       *
       * @param text  the text.
       * @param start  the index of the first character to measure.
       * @param end  the index of the last character to measure.
       *
       * @return The string width.
       */
      @Override
      public float getStringWidth(String text, int start, int end) {
          FontMetrics fm = this.g2.getFontMetrics();
          Rectangle2D bounds = TextUtilities.getTextBounds(
                  text.substring(start, end), this.g2, fm);
          float result = (float) bounds.getWidth();
          return result;
      }
  
  }
  
  